Mutual Solubilities of Water and Alkanes |
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| Authors: | Andrzej Ma?czyński Marian Góral Barbara Wi?niewska-Goc?owska Adam Skrzecz David Shaw |
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| Institution: | (1) Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland, PL;(2) Department of Chemistry, University of Warsaw, Warsaw, Poland, PL;(3) Department of Chemistry, University of Alaska, Fairbanks, Alaska, USA, US |
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| Abstract: | Summary. The evaluation of mutual solubility data for systems water with n-alkanes, isoalkanes, and cycloalkanes along the three phase line is reported and a formula for the prediction of solubility
of alkanes in water is developed. Then a cubic equation of state with an added term, which accounts for hydrogen bonding is
used for correlation of liquid–liquid equilibrium data and for prediction of solubility of water in hydrocarbons using alkane
in water solubility data. Comparison of the predicted and experimental solubilities is performed using all accessible experimental
data. With this approach it is possible to predict the solubilities of water in alkanes with good accuracy over the temperature
range up to about 20 K below critical temperature. Solubility of alkanes in water can also be calculated using experimental
data for solubility of water in alkanes but results of these calculations are more sensitive to experimental errors of the
data.
Corresponding author: E-mail: macz@ichf.edu.pl
Received August 5, 2002; accepted (revised) September 13, 2002
Published online March 13, 2003
RID="a"
ID="a" Dedicated to Prof. Dr. H. Gamsj?ger on the occasion of his 70th birthday anniversary |
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| Keywords: | , Hydrogen bonding, Equation of state, Mutual solubilities, Alkanes, Water, |
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